DTC Troubleshooting: 12-01
|DTC 12-01:||Voltage for VBU (Regular diagnosis)|
|1.||Turn the ignition switch OFF.|
|2.||Connect the HDS to the data link connector (DLC).|
|3.||Turn the ignition switch ON (II).|
|4.||Check the VBU in the DATA LIST with the HDS.|
Is the voltage at 9.2-17.4 V?
YES - Check for loose wires or poor connections. If the connections are good, the system is OK at this time.n
NO - Go to 5.
|5.||Check the No. 1 (70A) fuse in the under-hood fuse/relay box.|
Is the fuse OK?
YES - Reinstall the fuse, and go to 6.
NO - Replace the fuse, and recheck. If the fuse is blown, check for a short to body ground in this fuse circuit.n
|6.||Turn the ignition switch OFF.|
|7.||Disconnect the EPS control unit connector A (2P) and connector D (28P).|
|8.||Measure the voltage between the EPS control unit connector A (2P) terminal No. 2 and body ground.|
Is there battery voltage?
YES - Check for loose terminals in the EPS control unit A (2P) connector, and repair if necessary. If no poor connections are found, replace the EPS control unit .n
NO - Repair open in the wire between the EPS control unit and under-hood fuse/relay box.n